@carousel-prefix-cls: ~"@{css-prefix}carousel";
@carousel-item-prefix-cls: ~"@{css-prefix}carousel-item";

.@{carousel-prefix-cls} {
  position: relative;
  display: block;
  box-sizing: border-box;
  user-select: none;
  touch-action: pan-y;
  -webkit-tap-highlight-color: transparent;

  &-track, &-list {
    transform: translate3d(0, 0, 0);
  }

  &-list {
    position: relative;
    display: block;
    overflow: hidden;

    margin: 0;
    padding: 0;
  }

  &-track {
    position: relative;
    top: 0;
    left: 0;
    display: block;

    overflow: hidden;

    z-index: 1;
  }

  &-item {
    float: left;
    height: 100%;
    min-height: 1px;
    display: block;
  }

  &-arrow {

    border: none;
    outline: none;

    padding: 0;
    margin: 0;

    width: 36px;
    height: 36px;
    border-radius: 50%;

    cursor: pointer;

    display: none;

    position: absolute;
    top: 50%;
    z-index: 10;
    transform: translateY(-50%);

    transition: @transition-time;
    background-color: rgba(31, 45, 61, .11);
    color: #fff;

    &:hover {
      background-color: rgba(31, 45, 61, 0.5);
    }

    text-align: center;
    font-size: 1em;

    font-family: inherit;
    line-height: inherit;

    & > * {
      vertical-align: baseline;
    }

    &.left {
      left: 16px;
    }

    &.right {
      right: 16px;
    }

    &-always {
      display: inherit;
    }

    &-hover {
      display: inherit;

      opacity: 0;
    }
  }

  &:hover &-arrow-hover {
    opacity: 1;
  }

  &-dots {
    z-index: 10;

    @padding: 7px;

    display: none;

    position: relative;
    &-inside {
      display: block;
      position: absolute;
      bottom: 10px - @padding;
    }

    &-outside {
      display: block;
      margin-top: 10px - @padding;
    }

    list-style: none;

    text-align: center;

    padding: 0;
    width: 100%;
    height: 3px + @padding * 2;

    li {
      position: relative;
      display: inline-block;

      vertical-align: top;
      text-align: center;

      margin: 0 2px;
      padding: @padding 0;

      cursor: pointer;

      button {
        border: 0;
        cursor: pointer;

        background: #8391a5;
        opacity: 0.3;

        display: block;
        width: 16px;
        height: 3px;

        border-radius: 1px;
        outline: none;

        font-size: 0;
        color: transparent;

        transition: all .5s;
      }

      &:hover > button {
        opacity: 0.7;
      }

      &.@{carousel-prefix-cls}-active > button {
        opacity: 1;
        width: 24px;
      }
    }
  }
}
